Modular liquid or gas manifold for a swimming pool solar heater



FIG. 1 is a side elevational view of a modular liquid or gas manifold for a swimming pool solar heater, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an end elevational view thereof; and

FIG. 4 is a perspective view thereof. 

The ornamental design for a modular liquid or gas manifold for a swimming pool solar heater, substantially as shown and described. 